Abstract

Research has been conducted on a variety of combustion technologies in order to reduce diesel engine emissions. These technologies should precisely control the state of in-cylinder gas (EGR mass flow, air mass flow, and the like). However, because the controlled object is a multi-input, multi-output (MIMO) system and a coupled system, the use of control systems based on conventional methods that employ PID controllers represents a challenge. Model predictive control (MPC) is well known as a MIMO algorithm. An intake control system that could be applied to the intake system of a diesel engine was constructed by supplementing MPC with a feedback function using a disturbance observer and compensator for the nonlinear characteristic of the actuators. Performance tests using an actual vehicle verified that, when applied to a two-input (throttle valve, EGR valve), two-output (air mass flow, intake chamber pressure) system, the proposed MPC was able to rapidly control each output independently to the target value.

References

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Author (organization or company)

• Masaki UENO（Automobile R&D Center）
• Mitsuhiro IWADARE（Automobile R&D Center）
• Shuichi ADACHI（Keio University）

Publication Information

Article of Honda R&D Technical Review Vol.21 No.1 (196 - 204)

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